SUPERIOR, Ariz. — Outside of an aging mining town in the mountains east of Phoenix, a copper company has burrowed a shaft 1.3 miles into the high desert landscape in what is believed to be the deepest such mine in the U.S.
Resolution Copper Mining says the mine will usher in a new era of prosperity for Arizona, bringing in the equivalent of roughly a $1 billion worth of revenue annually for about 60 years in a state still trying to emerge from the housing bust.
The mine also will use approximately 18,000 acre feet of water annually, enough to supply about 40,000 homes. And it will claim nearly 5-square miles on the edge of nearby Superior to store mining waste that can be toxic.
The plan has angered conservationists, residents and Native American tribes who argue the mine will cause irreparable harm to land coveted for its beauty, biodiversity and sanctity.